Accession Number : ADD014561

Title :   Steroscopic Three Dimensional Large Screen Liquid Crystal Display.

Descriptive Note : Patent, Filed 22 Nov 85 patented 3 Mar 87,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Phillips, Thomas E ; Marez, John

Report Date : 03 Mar 1987

Pagination or Media Count : 8

Abstract : A three dimensional large screen liquid crystal projection display utilizes two liquid crystal light valves in tandem to produce polarization-type stereoscopic images in a large screen display format. Each light valve, driven separately by video input derived either from live scenes or computer generated data, presents one view of a stereoscopic image pair. Using one projection lamp, one projection lens, and a polarizing beamsplitter cube, the two images are optically combined and projected simultaneously onto a non-depolarizing screen. The particular optical geometry used results in orthogonal linear polarizations for the two images, so they can be viewed stereoscopically using polaroid glasses with appropriately oriented polarizing axes. Keywords: Patents. (jhd)

Descriptors :   *LIQUID CRYSTAL DISPLAY SYSTEMS, *KERR CELLS, *PATENTS, *STEREOSCOPIC DISPLAY SYSTEMS, AXES, BEAM SPLITTING, COMPUTERS, FORMATS, GEOMETRY, IMAGES, INPUT, LENSES, LINEAR POLARIZATION, OPTICAL PROPERTIES, ORTHOGONALITY, POLARIZING FILTERS, SCREENS(DISPLAYS), VIDEO SIGNALS

Subject Categories : Electrooptical and Optoelectronic Devices

Distribution Statement : APPROVED FOR PUBLIC RELEASE